Old feature request: undo system now restores images without reloading.

Was surprisingly easy to add, compiant with file reading and undo code.

Currently only the Image->ibuf gets restored, and its opengl binding, so
for realtime texture it works nicely. Also texture images are not freed
inbetween undo steps

Notes:
- Painting textures will just keep the painted image, there's no undo
  yet for that
- If this works satisfying, I'll extend it to compositing previews

TEST IT WELL PLEASE! :)

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/blenloader/intern/readfile.h b/source/blender/blenloader/intern/readfile.h
index efdfa9f76bf..a0f42769762 100644
--- a/source/blender/blenloader/intern/readfile.h
+++ b/source/blender/blenloader/intern/readfile.h
@@ -73,6 +73,7 @@ typedef struct FileData {
 	struct OldNewMap *datamap;
 	struct OldNewMap *globmap;
 	struct OldNewMap *libmap;
+	struct OldNewMap *imamap;
 	
 	ListBase mainlist;
 	
@@ -108,8 +109,10 @@ FileData *blo_openblenderfile( char *name, BlendReadError *error_r);
 FileData *blo_openblendermemory( void *buffer, int buffersize, BlendReadError *error_r);
 FileData *blo_openblendermemfile(struct MemFile *memfile, BlendReadError *error_r);
 
-void blo_freefiledata( FileData *fd);
+void blo_make_image_pointer_map(FileData *fd);
+void blo_end_image_pointer_map(FileData *fd);
 
+void blo_freefiledata( FileData *fd);
 
 BHead *blo_firstbhead(FileData *fd);
 BHead *blo_nextbhead(FileData *fd, BHead *thisblock);